Biological-ecological Recovery Technolo-gies On Contaminated Stream And Its Research

Water is in great need of with the rapid development of industry and agriculture, the fast growth of population and the continuous growth of urbanization. So large amount of waste water is produced and released to oceans and lakes. All these consequences impose severe threatens on economical development and the human survival, ecologic restoration of contaminated streams already thinks highly by countries all over the world.Therefore ecologic restoration of contaminated stream project must be done imperatively. Applying biological-ecological recovery principles instructing the practice of restoration of contaminated streams, summarizing types and the characters of the contaminated streams biological-ecological recovery technologies, elaborate on the application in contaminated streams recovery technology, such as the types and the factors. The types of aquatic plants and their results of purifying water, the types of aquatic plants and their results of purifying water, choose the principle of aquatic plant and the effects factors of that, process the experiment of aquatic plant for water purification, Also supply the methods to restoration of Xihei in Fuxin city.